VIIRS/JPSS1 Land Surface Temperature and Emissivity 6-Min L2 Swath 375m NRT
收藏www.earthdata.nasa.gov2024-11-07 更新2025-03-21 收录
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https://www.earthdata.nasa.gov/data/catalog/lancemodis-vj121img-nrt-2
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资源简介：
The Near Real Time (NRT) VIIRS Land Surface Temperature and Emissivity 6-Min L2 Swath 375m product with short-name VJ121IMG_NRT, is the same product but at 375m spatial resolution. The VJ121 algorithm is based on the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Temperature Emissivity Separation (TES) algorithm. This algorithm uses full radiative transfer simulations for the atmospheric correction, and an emissivity model based on the variability in the surface radiance data to dynamically retrieve both LST and spectral emissivity at native pixel resolution. Additional details regarding the methodology are available in the Algorithm Theoretical Basis Document (ATBD) at:
https://viirsland.gsfc.nasa.gov/PDF/VNP21_LSTE_ATBD_v2.1.pdf
and user guide at:
https://viirsland.gsfc.nasa.gov/PDF/VNP21_LSTE_user_guide.pdf
近实时（NRT）VIIRS陆地表面温度和发射率6分钟L2横跨375米产品，简称VJ121IMG_NRT，与375米空间分辨率的产品相同。VJ121算法基于先进星载热辐射和反射辐射计（ASTER）温度发射率分离（TES）算法。该算法采用完整的辐射传输模拟进行大气校正，并基于表面辐射亮度数据的变异性构建发射率模型，以动态获取原始像素分辨率下的陆地表面温度和光谱发射率。关于该方法的详细说明可参考算法理论基础文档（ATBD）及用户指南，分别位于以下链接：
https://viirsland.gsfc.nasa.gov/PDF/VNP21_LSTE_ATBD_v2.1.pdf
和
https://viirsland.gsfc.nasa.gov/PDF/VNP21_LSTE_user_guide.pdf
提供机构：
Earthdata
